Відео

"The only video needed..."...? You consider yourself better than all of 2.700.000.000. members of youtube...?? Must be click bait. Can't be serious content. Better hit "don't recommend channel".

Summertime we’re having 15 hour daytime

I still dont get it, a block of 3000 tonnes will sink but a ship weighing 3000 tonnes will float, i mean a slab of concrete cannot float so how is the bouyancy principle not applicable

This is one if the coolest videos. Thank you for all your time and the work you put into making this. Great job!

What gives detached rocket boosters sufficient _horizontal_ momentum relative to the earth, to achieve orbit instead of falling down?

word of caution: centrifugal force is fictitious. Only centripetal force.

Where does the second stage engine go then?

because carrying enough extra hardware to survive reentry and land is mass prohibitive for the second stage. SpaceX cares very little about extra mass on the first stage, but they are very serious about conserving mass on everything from stage 1 up. The first stage can "reenter" with no extra heat shielding. The second stage would require a lot of heat shield.

thank you

Hi, I really love your content 🤩 Would you be interested to talk about the physics behind my circular swing of #travelingrings ? On the one hand, when we swing inside (and thus pull outside) the polygonal setting, our arc of motion isn’t leveled and use a mix of centripetal energy and potential energy (similar to the consequence of the retrograde burn). On the other hand, when we swing outside (and thus pull inside) the polygonal setting, our arc of motion could be either leveled if we glide circular at the right speed (similar to perfectly circular orbit) or waved due to the potential energy transferring in kinetic energy if we glide elliptical at a greater speed (similar to the consequence of the prograde burn). I’d love to simply evaluate the difficulty of a setting according to the length (of strap) and spacing (distance between rings) for polygonal apparatus and most of all visualize the different types of swing in such an awesome video as you can edit them 💯 Best regards from Stuttgart, John

I live close to the equator so any changes in daylight is unnoticable

i wanted to understand how they work to make my own, and this helped alot, thanks!

For IPhone 4s, it used a coin vibration motor instead of that cylindrical one

This is a BRUSHED MOTOR. BRUSHLESS IS BETTER

Thanks!

Why there’s no Asia’s solar eclipse I want to see I haven’t see solar eclipse years ago😭😭😭😭😭😭😭😭😭😭😭😭😭😭😢😭😭😭😭😭😭😭😭😢😢😢😢😢😢😢😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😭😭😭😭😭😭😭😭😭😭😭😭😭😢😭😭😭😭😢😢😢😢😢😢😢😭😭😭😭😭😭

moment

This makes more sense now thanks. I also found out that on the 2 weeks preceding or following a solar eclipse is a lunar eclipse

The 6-month transfer described in the video is not actually the minimum delta-v Hohmann trajectory. The Hohmann transer would take about 9 months. The 6-month transfer already has a trajectory that intersects rather than touches the Mars orbit. The reason the 6-month transfer is favored for a manned mission is that it allows for a free return in case something goes wrong during the mission and the crew decides to return without landing on Mars.

Is it true that during a solar eclipse the moon appears to change direction? I can't quite picture in my head why that would be the case.

That doesn’t seem like enough daylight hours for mid summer. Is Seattle that much farther north than Montreal

Such an easy to understand visualizer with good explanation too, thanks

ua-cam.com/video/hwd1_LUo0P0/v-deo.html

You answered my question.Thankyou very much.What a task !!

You can convert between horsepower and watts by multiplying by 746 (approximately). This is easy to remember because it's 1/2 of the year Columbus discovered America. 1492/2 = 746.

Very nice explanation and animation.

why does the spacecraft not fall to earth when it slows down?

Nice video, but there are some pretty big mistakes which stops me from sharing it. At 3:00, the prograde and retrograde vectors are inverted. At 4:17, you start saying why not burning at Earth, and you then explain the radial out burn, also with a wrong illustration, showing radial in. 4:50, you describe radial in, but the illustration shows radial out.

I needed more videos.

So the earth is not flat?

Wish this Xcrap would stop, dumb when it began, stupid when everyone started doing ... Most people don't understand Mr Xmusk is taking billions from the American people in over-profitized contracts and tax breaks, basically the privatizing NASA to make excessive profits instead of keeping NASA a public asset.

Makes sense

It actually does happen twice a year, but most the time the fish see it and we miss out

Oh, cool.

And let's not forget oribital precession, meaning the time in which the moon crosses the lunar nodes, isn't exactly the same either. How much of a difference that precession causes I do not know, I just know that it plays a role, even if it is small.

It’s cause angles of the orbits

What a great explanation! I didn't really know about the details of the different engine designs. Well done!

What causes the moon nodes to change

If it were every month then it wouldn’t be special.

Got a new information 🤝✨

For those wondering, eclipse season is not quite every 6 months. It’s 5 months and some change. I looked it up because I was wondering how 2017’s eclipse was in August and this one was April.

😂😂😂😂😂

funny how they only have cartoons of space LIERS

3:31 you mean under the sun

So why dont we have a 2 eclipses somewhere on Earth every year? Why are they instead so rare and uncommon?

POV you live in arizona, haven't been in the path of totality for total or annual eclipse since 1806 and won't until 2205

wow good job. No fluff, straight to the point

why doesn't one happen every 6 months then?

There is a solar eclipse that happens every 6th new moon.

Business is booming for videos related to solar eclipse